Finding the Third Proportional to 1,320 and 1,955
Calculator
Solution
The third proportional to 1,320 and 1,955 is: 2,895.47
Step by Step Solution
- Step 1: Write the proportion equation
1,320 : 1,955 = 1,955 : x - Step 2: Convert to fraction form
1,320/1,955 = 1,955/x - Step 3: Cross multiply
1,320x = 1,955 × 1,955 - Step 4: Simplify right side
1,320x = 3,822,025 - Step 5: Solve for x
x = 3,822,025/1,320 - Step 6: Final answer
x = 2,895.47
Related Problems
Find third proportional to 660 and 977.50
Half scale
Find third proportional to 2,640 and 3,910
Double scale
Find third proportional to 1,322 and 1,958
Similar ratio
Find third proportional to 1,980 and 2,932.50
1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.